RIO DE JANEIRO (AP).- Doctors have removed a tumor from the colon of famed Brazilian architect Oscar Niemeyer after discovering intestinal bleeding.

The 101-year-old Niemeyer will stay in intensive care for at least several days. Niemeyer was originally hospitalized last week for gallstone surgery.

A statement Wednesday night from the Hospital Samaritano says the latest surgery was not linked to the gallstone surgery. The tumor operation lasted three hours and was completed without complications.

Niemeyer designed much of Brazil's futuristic capital, Brasilia, and Rio's Sambadrome, where the annual carnival parade is held. He also helped design the United Nations building in New York City.